A thin 1.1-mm coating of glycerine has been placed between two microscope slides

Question

A thin 1.1-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.29 m/s relative to the other slide. _______ A thin 1.1-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.29 m/s relative to the other slide. _______ A thin 1.1-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.29 m/s relative to the other slide. _______

Explanation / Answer

F = dv/dy A = 1.5 Pa.s X (0.29 m/s / 0.0011 m) X 0.01 m X 0.04 m = 0.158 N

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